Dark veins on breasts???? Please don't just read. Respond too..

Ocean

My breasts usually get swollen and super sore, especially on the sides, about a week before I start. My period is due in 6 days, and I haven't felt and swelling or aching, but I have these very noticeable dark veins all throughout my breasts, especially on the tops.

Have any of yall gotten dark veins before or during your period???